Swing-motion truck-frame for railway-cars.



N; 729,150. PAIBNTED MAY '26, 1903'.

J. M. HANSEN;

SWING MOTION TRUCK IRAMR FOR RAILWAY GARS.

` APPLIOATION FILED JAN. 9, 1902.

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UNTTED STATES Patented May 26, 1905i.

PATENT OFFICE,

SWING-MOTION TRUCK-FRAME FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 729,160, dated May 26,1903.

Application filed January 9, 1902. Serial No. 89,057. (No model.)

To all whom, it 11i/[ty concern:

Be it known that I, JOHN M. HANSEN, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State of Penn-Sylvania, have invented a certain new and useful Improvement inSwing-Motion Truck- Frames for Railway-Cars, of which the following is afull, clear, and exact description.

In a concurrent application I have shown and described a truck-frameside the upper arch-bar of which consists, essentially, of parallelchannel-beams arranged back to back at their ends and spaced apart inhexagonal form at the center and combined with a'lower arch-bar, atie-bar, and a spring-support in such manner that the springs may be'puton the center line of the frame, and in that application and in anotherI have shown different applications of the principle of the inventionand have illustrated that principle specifically in connection with atruck in which the use of a truck-bolster is rendered unnecessary.

The present invention embodies the same principle of side frame utilizedin connection with a truck-bolster to form a truck-frame of theswing-motion type.

In carrying out my invention I use an upper arch-bar, preferably ofchannel-beams, pressed, rolled, or otherwise produced, united at theirends and spread apart centrally in a substantially hexagonal contour, alower arch-bar, and a tie-bar where necessary, and these arch-bars areconnected by means of vertical column-posts, riveted thereto at top andbottom, and support between these posts and from the upper arch-bar theswing-stirrup in which the. springs are placed and support the bolsterupon the ends of the springs. with a limited endwise movement, all as Iwill proceed now more particularly to set forth and iinally claim.

In the accompanying drawings, illustrating my invention, in the severalfigures of which like parts are similarly designated, Figure 1 is a topplan view of one-half of a truck constructed in accordance with thepresent invention. Fig. 2 is a side elevation, and Fig. 3 is atransverse vertical section. Fig. .tis a side elevation of one of thecolumn-posts detached, and Fig. 5 is a top plan view of said post. Fig.6 is a perspective view of the swing-stirrup. Fig. 7 is a top plan view,and Fig. 8 is a front elevation of a support for the swing-stirrup.

The wheels, axles, boxes, and pedestals,so far as used and herein shown,are and they Inay be of any approved construction.

The sides of the frames are alike, and hence the description of one willsufiice for both. As shown, the upper arch-bar is composed ofchannel-beams 1 and 2, arranged back to back and in intimate contact attheir ends and united at their ends by cover-plates 3, which extendinwardly toward the center and are riveted to the dan ges of the beams.As shown, cavities 4 are made between the meeting portions of the endsof these channel-beams to receive the pedestal-bolts 5. Between theseends the beams divergefrom opposite ends and then have parallel portionsbetween these diverging portions, thus forming a hexagonal figure, andit is preferred to extend the coverplates 3 sufficiently to cover thediverga ing portions of the beams. The lower archB bar 6 may be a at barbent to shape and"se cured to the meeting ends of the upper archbar, andthe tie-bar 7 may be ofany approved construction. The upper and lowerarchbars and the tie-bar where used are connected by Verticalcolumnposts 8, the details of which are shown in Figs. 4 and 5, andcomprisin g, preferably, pressed-steel shapes each having a top flange9, byvmeans of which it may be riveted to the anges of the upperarch-bar beams, and a foot-Hange 10, by means of which itmay be rivetedto the lower arch-bar, with an intervening vertical web having a centralU-shaped longitudinal projection or embossment 1l to stiften andstrengthen the same.l The opposite side frames are connected byangle-bars 12, arranged just below the upper arch-bars and riveted byone iiange to the lianges of the arch-bars and by the other ,flange tothe column-posts.

The parallel portions of the hexagonal iigure are supplied with cast orotherwise-produced supports 13, (shown in detail in Figs. 7 and 8 and inposition in Figs. 1, 2, and 3,) the vertical iianges 14 of thesesupports being riveted to the webs of the upper arch-bar beams and thehorizontal iianges 15 being riveted to the angle-bars 12, and eachsupport is provided with a bearing 16 to receive a bar 17, which isrestrained from longitudinal movement by means ofcotter-pins or otherdevices 18. Upon this bar 17 isA suspended the stirrup or hanger 19, theupper end of which has perforated bosses 2O to receive the bar 17, andthis stirrup or hanger projects downwardly through the'space formed bythe hexagonal figure of the upper arch-bar. It will be seen, therefore,that this stirrup, hanger, or yoke is adapted to swing laterally of thetruck on the bar 17 as a pivot, and to utilize this motion I provide aspring-plank composed of a pair of angle bars or beams 21, extendingfrom side frame to side frame crosswise of the truck, and having aspring-pocket 22 of any approved construction at opposite ends, andthere. is provided a bearing-plate 23 on the spring-plank, which centersupon a pivotplate 24, carried by the stirrup 19.

The sides are provided with stops 25, projecting laterally beyond andsecured to the inner member of the upper arch-bar, and these stops arevdesigned to come into Contact with the side bearings 26 of thetruck-bolster 27, which bolster maybe ofanyapproved construction.

The springs 28 may be of any approved construction.

Thus it will be seen that a truck of the swing-motion type is providedof very simple construction and Verydurable and which permits thearrangement of the springs on the center line of the frame.

It will be observed that the bolster extends under the arch-bar andbetween it and the bolster-springs, which have their pivotal supportapproximately in line with the arch-bars, so that the stops whereby themovement of `the bolster is controlled are almost in line with the pointof movement of the springplank.

What I claim is- 1. A side' frame, for swing-motion trucks, comprising apair of channel-beams, united at their ends, back to back, and spacedapart centrally between the ends, and a stirrup, hanger or yokesuspended from said arch-bar within its central space.

2. A side frame, for swing-motion trucks, comprising an upper arch-bar,of channelbeams arranged back to back at their ends and spaced apartcentrally between their ends, bearing-pieces secured to the beams Withinthe aforesaid space, a suspension-bar arranged in said bearings, and aspring stirrup, hanger or yoke applied to said suspension-bar.

3. Aswing-motion truck-frame,comprising side frames, having upperarchbars each made with a central space and provided with bearingsarranged in said central space, a U- shaped spring stirrup, hanger, orsupport suspended from said bearings in each side frame, tie-barsconnecting the opposite side frames rigidly, a spring-plank, and pivotalconnections between said spring-plank and the spring stirrup, hanger oryoke.

4. A side frame, comprising an upper archbar spread apart at its center,a lower archbar, and pressed-steel vertically-embossed column-postsinterposed between and rigidly secured to the arch-bars.

5. In a truck,the combination of side frames composed essentiallyofupper and lower archbars, vertically-embossed pressed-steel column-postsinterposed between and rigidly secured tothe arch-bars, and transversetiebars riveted to the upper arch-bars and to the column-posts.

In testimony whereof I have hereunto set my hand this 7th day ofJanuary, A. D. 1902.

JOHN M. HANSEN.

Witnesses:

CHAs. F. CHUBB, WM. BIERMAN.

